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Drag Coefficient

The drag coefficient is a dimensionless quantity that is used to quantify the drag or resistance of an object in a fluid environment, such as air or water.

The drag coefficient equals twice the drag force divided by the product of the area, the square of the characteristic speed and the mass density.

Formula

QuantityVariable[Subscript["C", "d"], "DragCoefficient"] == (2*QuantityVariable[Subscript["F", "d"], "Force"])/(QuantityVariable["A", "Area"]*QuantityVariable["u", "Speed"]^2*QuantityVariable["ρ", "MassDensity"])

symbol description physical quantity
Cd drag coefficient "DragCoefficient"
A area "Area"
u characteristic speed "Speed"
ρ mass density "MassDensity"
Fd drag force "Force"

Forms

Examples

Get the resource:

In[1]:=
ResourceObject["Drag Coefficient"]
Out[1]=

Get the formula:

In[2]:=
FormulaData[ResourceObject["Drag Coefficient"]]
Out[2]=

Use some values:

In[3]:=
FormulaData[ ResourceObject[ "Drag Coefficient"], {QuantityVariable["u","Speed"] -> Quantity[800, ("Kilometers")/("Hours")], QuantityVariable["A","Area"] -> Quantity[10, ("Meters")^2]}]
Out[3]=

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